Exhibition apparatus.



PATENTED MAY 19, 1903.

- F. W. KREMER.

EXHIBITION APPARATUS. Y APPLIOATION FILED SEPT. "24. 1902.

2 sinus-811mm 2.

K0 MODEL.

Patented May 19, 1903:

PATENT OFFICE- FRANKLIN W. KREMER, OF AKRON, OHIO.

EXHIBITION APPARATUS.

SPEOIFIGATI EON forming part of Letters Patent No. 728,246, dated May19, 1903.

Application filed September 24,1902. Serial No. 124,682. (No model.)

To aZZ whom it may concern:

Be it known that I, FRANKLIN W. KREMER, a citizen of the United States,residing at Akron, in the county of Summit and State of Ohio, haveinvented a certain new and use-.

ful Improvementin Exhibition Apparatus, of which the following is acomplete-specifi cation.

My invention has a relation to improvements in that class of devicesprovided for spectacular exhibitions for, public amusement; and theobject of my invention is to produce a new and improved device of theclass named.

To the accomplishment of the aforesaid object my invention consistsinthe peculiar and novel construction, arrangement, and 'com-- bination ofparts hereinafter described and then specifically pointed out in theclaims, reference being had to the accompanying drawings, which form apartof this specification. In theaccompanying drawings, in which similarreference-nu merals indicate like parts in the different figures; Figure1 is an elevation of the fixed portion of niy apparatus with two of theballs, hereinafter described, in connection therewith; and Fig. 2,asection of the track and ball on a greatly-enlarged scale, the ballbeingin central section.

Referring to the figures, 1 is a metallic track consisting of paralleltubes 2, united at intervals by cross-rods 3, which are curved to avoidcontact with the ball, to be described. One end of this track starts atan elevated platform 4, whence it projects outward and thence is curvedto an inclined length to the.

v floor 5, whence it bends spirally witha gradually-decreasing diameteruntil it terminates erably be twenty-eight inches; but this may bevaried with the taste or needs of the user or as experience maydetermine is safest and most effective. The car to run on this track isa hollow ball 10, having in some part of its periphery an opening bywhich it may be entered, closed by a door 11, hung by hinges.

where he enters the ball: and closes and secures the door andseatshimself on the seat 17, grasping the upper end of the bars 15 tosteady himself. The ball is then pushed onto the inclined portion ofthetrack, in the descent of which it acquires such momentum as to" followthe first ascent of the spiral porends of the track, as shown in thedrawings,

or by other means to prevent shock to the occupant. The occupant thenunlocks thedoor and emerges onto the stage 6, whence he can descend tothe floor by a stair.

I do not intend by this description to limit the convolutions of thetrackto a tapering spiral, as the convolutions may have the samediameter, but to present this asla preferred form of construction. A 7

Having thus described my invention, what I claim,-and desire to secureby Letters Patof the convolutions of the spiral gradually decreasingtoward one end; with landings at either end, and means for communicatingan initial velocity to the car, substantially as shown and described.

3. An improved exhibition apparatus consisting of a spiral two-railtrack with a substantially horizontal axis of equal gage throughout,with one terminal extended upward at a slight inclination from aperpendicular, and the other terminal in a horizontal plane, said trackbeing arranged to receive a spherical car, substantially as shown anddescribed.

4. An improved exhibition apparatus consisting of a spiral two-railtrack of equal gage throughout, with a substantially, horizontal axis,to receive a spherical car, one of the terminals of said track extendedat a slight inclination from a perpendicular, with a platform at itsupper terminal, and a second platform at its opposite terminal, withmeans for arresting the momentum of the car at the latter platform,substantially as shown and described. 7

5. An improved exhibition apparatus consisting of a spiral two-railtrack of equal gage throughout with a substantially horizontal axis, toreceive a spherical car, the convolutions of the spiral graduallydecreasing toward one end, the terminal of said track at its greatestdiameter extended at a slight inclination from a perpendicular with aplatform at its upper terminal, and a landing at its opposite terminal,substantially as shown and described.

6. An improved car for exhibition purposes, consisting of a hollowsphere with a diametric cross-bar having pivotally mounted thereon twoarms extended above and below it, with a seat between theoppositely-disposed ends of said arm, and the other ends conformed toform convenient handles for the hands to grasp, and a door by which saidcar can be entered, substantially as shown and described.

7. The herein-described exhibition apparatus consisting of a spiraltwo-rail track of even gage throughout, the convolutions of said spiralgradually decreasing in diameter from one end, with an extension at oneend slightly'inclined from a perpendicular to a platform; the oppositeend terminating at a landing with means for arresting the momentum ofthe car, in combination with a car consisting of a hollow sphere with adiametric cross bar and two arms pivotally mounted thereon extendingabove and below said bar, a seat between the oppositely-disposed ends ofsaid bars, the opposite ends of said bars being molded to formconvenient handles for the hands, and a door by which said car may beentered, all constructed and arranged substantially as shown anddescribed and for the purpose specified.

In testimony that I claim the above I hereunto set my hand in thepresence of two subscribing witnesses.

FRANKLIN VV. KREMER.

In presence of O. A. OAsToR, ARTHUR YERRICK.

